How would I be able to install trusses on the building walls in which the tails were pre-cut to length, and have them come out perfectly straight to one another, without using a string line, mainly because of wind?
Walls – How to position roof trusses without using a string line
framingwalls
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Best Answer
I've rarely used a dryline to set trusses. Plumb and straighten your walls, then set each truss heel to the same wall. Be sure to not rotate truss direction from one to another. Because the truss plant's jig probably isn't perfectly symmetrical, this would result in humps in the roof plane.
If you can't straighten the walls, chalk a line on the top plate from which to set heel position. If wind is a factor, use an eye from one end and have an assistant (or two) pin the line in position at midpoints and snap each way.